Load Specifications
Load data in caliber 6.5 x 64 (Reb) with .264 | 142gr | SUS-TAC HPT bullet and 75 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Vihtavuori N560, Norma MRP and Accurate MAGPRO.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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Max Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 96% | 54,578 psi | 88% | 2762 fps | 100% |
| Accurate 4350 | <<locked>> | 88% | 56,159 psi | 90% | 2799 fps | 100% |
| Accurate MAGPRO | <<locked>> | 94% | 52,997 psi | 85% | 2848 fps | 97.1% |
| ADI AR 2208 | <<locked>> | 82% | 54,230 psi | 87% | 2710 fps | 100% |
| ADI AR 2209 | <<locked>> | 92% | 53,417 psi | 86% | 2799 fps | 99% |
| ADI AR 2213 | <<locked>> | 96% | 54,694 psi | 88% | 2854 fps | 98.3% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 45,585 psi | 73% | 2687 fps | 96.6% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 40,393 psi | 65% | 2644 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 82% | 55,434 psi | 89% | 2733 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 88% | 53,316 psi | 85% | 2799 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 84% | 54,491 psi | 87% | 2815 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 92% | 52,750 psi | 85% | 2782 fps | 98.9% |
| Alliant Reloder-22 | <<locked>> | 96% | 54,418 psi | 87% | 2851 fps | 99.2% |
| Alliant Reloder-23 | <<locked>> | 98% | 55,201 psi | 89% | 2825 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 50,908 psi | 82% | 2825 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 94% | 55,535 psi | 89% | 2913 fps | 100% |
| Bofors RP15 | <<locked>> | 98% | 53,272 psi | 85% | 2831 fps | 99% |
| Bofors RP30ᴾ | <<locked>> | 100% | 46,847 psi | 75% | 2756 fps | 97.4% |
| Bofors RP5 | <<locked>> | 96% | 54,418 psi | 87% | 2851 fps | 99.2% |
| Bofors RP7 | <<locked>> | 86% | 55,448 psi | 89% | 2746 fps | 99.6% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 50,067 psi | 80% | 2772 fps | 98.2% |
| Hodgdon H414 | <<locked>> | 86% | 54,505 psi | 87% | 2799 fps | 99.8% |
| Hodgdon H4350 | <<locked>> | 84% | 53,737 psi | 86% | 2756 fps | 99.2% |
| Hodgdon H4831 | <<locked>> | 94% | 54,723 psi | 88% | 2795 fps | 97.7% |
| Hodgdon H4831 SC | <<locked>> | 94% | 53,432 psi | 86% | 2776 fps | 97.5% |
| Hodgdon Hybrid 100V | <<locked>> | 90% | 53,780 psi | 86% | 2726 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 49,879 psi | 80% | 2881 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 86% | 54,491 psi | 87% | 2835 fps | 99.7% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,985 psi | 59% | 1722 fps | 100% |
| IMR 4350 | <<locked>> | 88% | 53,272 psi | 85% | 2730 fps | 99.5% |
| IMR 4451 Enduron | <<locked>> | 84% | 53,534 psi | 86% | 2720 fps | 99.7% |
| IMR 4831 | <<locked>> | 88% | 53,040 psi | 85% | 2740 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 56,014 psi | 90% | 2782 fps | 98.1% |
| IMR 7828 SSC | <<locked>> | 98% | 55,854 psi | 90% | 2884 fps | 98.6% |
| Lovex S065 | <<locked>> | 86% | 54,215 psi | 87% | 2720 fps | 100% |
| Lovex S070 | <<locked>> | 88% | 55,550 psi | 89% | 2762 fps | 99.9% |
| Lovex S071ᴾ | <<locked>> | 100% | 52,011 psi | 83% | 2726 fps | 99.9% |
| Norma 204 | <<locked>> | 88% | 54,056 psi | 87% | 2782 fps | 98.9% |
| Norma 217ᴾ | <<locked>> | 100% | 36,042 psi | 58% | 2569 fps | 96.1% |
| Norma MRP | <<locked>> | 94% | 53,838 psi | 86% | 2867 fps | 99.8% |
| Norma URP | <<locked>> | 88% | 54,766 psi | 88% | 2782 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 52,576 psi | 84% | 2841 fps | 98.4% |
| Ramshot Hunter | <<locked>> | 88% | 53,461 psi | 86% | 2785 fps | 100% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 54,723 psi | 88% | 2844 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,594 psi | 60% | 1762 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 56,231 psi | 90% | 2756 fps | 100% |
| ReloadSwiss RS 60 | <<locked>> | 82% | 53,838 psi | 86% | 2802 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 88% | 56,246 psi | 90% | 2825 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 54,288 psi | 87% | 2848 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 50,038 psi | 80% | 2874 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 82% | 53,243 psi | 85% | 2700 fps | 100% |
| Rottweil R 904 | <<locked>> | 92% | 54,694 psi | 88% | 2766 fps | 98.3% |
| Rottweil R 905 | <<locked>> | 94% | 55,941 psi | 90% | 2831 fps | 99.4% |
| Rottweil R 907 | <<locked>> | 86% | 55,448 psi | 89% | 2746 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 86% | 54,215 psi | 87% | 2720 fps | 100% |
| Shooters World SW4350 | <<locked>> | 88% | 55,550 psi | 89% | 2762 fps | 99.9% |
| SNPE Vectan SP 11 | <<locked>> | 82% | 54,665 psi | 88% | 2756 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 53,534 psi | 86% | 2582 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 86% | 53,359 psi | 86% | 2674 fps | 99.7% |
| SNPE Vectan Tubal 8000 | <<locked>> | 94% | 55,492 psi | 89% | 2825 fps | 99.3% |
| Somchem S355 | <<locked>> | 82% | 53,113 psi | 85% | 2697 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 56,362 psi | 90% | 2762 fps | 97.9% |
| Somchem S365 | <<locked>> | 90% | 54,839 psi | 88% | 2785 fps | 100% |
| Somchem S385 | <<locked>> | 94% | 56,289 psi | 90% | 2802 fps | 99.7% |
| Vihtavuori N150 | <<locked>> | 84% | 54,186 psi | 87% | 2671 fps | 100% |
| Vihtavuori N160 | <<locked>> | 86% | 53,084 psi | 85% | 2726 fps | 100% |
| Vihtavuori N165 | <<locked>> | 98% | 55,796 psi | 89% | 2782 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 88% | 55,796 psi | 89% | 2782 fps | 100% |
| Vihtavuori N555 | <<locked>> | 94% | 53,998 psi | 87% | 2799 fps | 100% |
| Vihtavuori N560 | <<locked>> | 94% | 53,838 psi | 86% | 2861 fps | 97.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 53,330 psi | 86% | 2838 fps | 98% |
| Winchester 6.5 StaBALL | <<locked>> | 88% | 55,927 psi | 90% | 2736 fps | 100% |
| Winchester 760 | <<locked>> | 86% | 54,505 psi | 87% | 2799 fps | 99.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 55,898 psi | 90% | 2953 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 96% | 56,376 psi | 90% | 2799 fps | 99.3% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 23.62"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 31,894 psi | 51% | 2339 fps | 96.1% |
| Accurate 4350 | <<locked>> | 80% | 42,975 psi | 69% | 2585 fps | 99.8% |
| Accurate MAGPRO | 53.3 gr | 90% | 45,977 psi | 74% | 2723 fps | 95.3% |
| ADI AR 2208 | <<locked>> | 80% | 51,256 psi | 82% | 2664 fps | 100% |
| ADI AR 2209 | <<locked>> | 82% | 38,334 psi | 61% | 2513 fps | 95.4% |
| ADI AR 2213 | <<locked>> | 88% | 41,655 psi | 67% | 2612 fps | 95% |
| ADI AR 2217 | <<locked>> | 98% | 42,685 psi | 68% | 2628 fps | 95.6% |
| ADI AR 2225 | <<locked>> | 94% | 33,330 psi | 53% | 2467 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 52,040 psi | 83% | 2684 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 41,191 psi | 66% | 2592 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 80% | 47,152 psi | 76% | 2703 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 82% | 38,363 psi | 62% | 2510 fps | 95.6% |
| Alliant Reloder-22 | <<locked>> | 86% | 38,769 psi | 62% | 2562 fps | 95.9% |
| Alliant Reloder-23 | <<locked>> | 80% | 30,603 psi | 49% | 2365 fps | 98.9% |
| Alliant Reloder-25 | <<locked>> | 84% | 30,356 psi | 49% | 2379 fps | 96% |
| Alliant Reloder-26 | <<locked>> | 80% | 33,011 psi | 53% | 2487 fps | 98% |
| Bofors RP15 | <<locked>> | 88% | 38,508 psi | 62% | 2556 fps | 95.6% |
| Bofors RP30 | <<locked>> | 96% | 41,046 psi | 66% | 2641 fps | 95.8% |
| Bofors RP5 | <<locked>> | 86% | 38,769 psi | 62% | 2562 fps | 95.9% |
| Bofors RP7 | <<locked>> | 80% | 45,948 psi | 74% | 2589 fps | 98.5% |
| Hodgdon H1000 | <<locked>> | 94% | 41,046 psi | 66% | 2598 fps | 95.8% |
| Hodgdon H414 | <<locked>> | 80% | 44,541 psi | 71% | 2631 fps | 98.7% |
| Hodgdon H4350 | <<locked>> | 80% | 47,152 psi | 76% | 2644 fps | 98.2% |
| Hodgdon H4831 | <<locked>> | 88% | 44,730 psi | 72% | 2625 fps | 95.4% |
| Hodgdon H4831 SC | <<locked>> | 88% | 43,685 psi | 70% | 2605 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 38,827 psi | 62% | 2484 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 90% | 36,013 psi | 58% | 2569 fps | 95.2% |
| Hodgdon Superformance | <<locked>> | 80% | 43,714 psi | 70% | 2648 fps | 98.3% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,601 psi | 44% | 1535 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 41,524 psi | 67% | 2523 fps | 97.6% |
| IMR 4451 Enduron | <<locked>> | 80% | 47,340 psi | 76% | 2615 fps | 99% |
| IMR 4831 | <<locked>> | 80% | 41,017 psi | 66% | 2536 fps | 99.7% |
| IMR 4955 Enduron | <<locked>> | 86% | 43,468 psi | 70% | 2562 fps | 95.2% |
| IMR 7828 SSC | <<locked>> | 90% | 42,670 psi | 68% | 2644 fps | 95.5% |
| Lovex S065 | <<locked>> | 80% | 44,991 psi | 72% | 2569 fps | 99.5% |
| Lovex S070 | <<locked>> | 80% | 43,323 psi | 69% | 2556 fps | 98.6% |
| Lovex S071 | <<locked>> | 84% | 31,125 psi | 50% | 2320 fps | 95.8% |
| Norma 204 | <<locked>> | 80% | 41,249 psi | 66% | 2552 fps | 96.3% |
| Norma 217 | <<locked>> | 98% | 33,779 psi | 54% | 2513 fps | 95.1% |
| Norma MRP | 46.5 gr | 80% | 33,069 psi | 53% | 2454 fps | 95.2% |
| Norma URP | <<locked>> | 80% | 42,293 psi | 68% | 2575 fps | 99.7% |
| Ramshot Grand | <<locked>> | 90% | 42,612 psi | 68% | 2661 fps | 96% |
| Ramshot Hunter | <<locked>> | 80% | 41,002 psi | 66% | 2566 fps | 98.6% |
| Ramshot Magnum | <<locked>> | 88% | 35,201 psi | 56% | 2474 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,210 psi | 45% | 1575 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 52,895 psi | 85% | 2707 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 50,038 psi | 80% | 2749 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 42,699 psi | 68% | 2605 fps | 99.7% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 41,104 psi | 66% | 2618 fps | 99.5% |
| ReloadSwiss RS 76 | <<locked>> | 90% | 35,128 psi | 56% | 2549 fps | 96.2% |
| Rottweil R 903 | <<locked>> | 80% | 49,966 psi | 80% | 2651 fps | 100% |
| Rottweil R 904 | <<locked>> | 84% | 42,395 psi | 68% | 2549 fps | 95.5% |
| Rottweil R 905 | <<locked>> | 82% | 37,478 psi | 60% | 2493 fps | 95.5% |
| Rottweil R 907 | <<locked>> | 80% | 45,948 psi | 74% | 2589 fps | 98.5% |
| Shooters World Long Rifle | <<locked>> | 80% | 44,991 psi | 72% | 2569 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 80% | 43,323 psi | 69% | 2556 fps | 98.6% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 51,039 psi | 82% | 2703 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 50,227 psi | 81% | 2536 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 44,121 psi | 71% | 2520 fps | 98.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 82% | 37,144 psi | 60% | 2487 fps | 95.3% |
| Somchem S355 | <<locked>> | 80% | 49,864 psi | 80% | 2648 fps | 100% |
| Somchem S361 | <<locked>> | 86% | 46,166 psi | 74% | 2595 fps | 95.8% |
| Somchem S365 | <<locked>> | 80% | 38,957 psi | 62% | 2533 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 35,621 psi | 57% | 2425 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 80% | 47,718 psi | 77% | 2575 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 43,758 psi | 70% | 2572 fps | 99.8% |
| Vihtavuori N165 | <<locked>> | 84% | 35,244 psi | 57% | 2411 fps | 95.2% |
| Vihtavuori N550 | <<locked>> | 80% | 42,946 psi | 69% | 2572 fps | 99.7% |
| Vihtavuori N555 | <<locked>> | 80% | 34,258 psi | 55% | 2441 fps | 98.9% |
| Vihtavuori N560 | 51.1 gr | 88% | 43,772 psi | 70% | 2680 fps | 95.4% |
| Vihtavuori N565 | <<locked>> | 94% | 43,613 psi | 70% | 2664 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 42,699 psi | 68% | 2536 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 44,788 psi | 72% | 2635 fps | 98.7% |
| Winchester StaBALL HD | <<locked>> | 80% | 27,064 psi | 43% | 2362 fps | 98.8% |
| Winchester Supreme 780 | <<locked>> | 84% | 37,391 psi | 60% | 2464 fps | 95.2% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 75 powders for 6.5 x 64 (Reb) loaded with the .264 | 142gr | SUS-TAC HPT. Winchester StaBALL HD delivers the highest muzzle velocity at 2,953 fps; across all powders the maximum-charge window runs from 1,722 fps to 2,953 fps. ADI AR 2217 gives the best case fill at 100 %, and 75 of the 75 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 142.0 gr projectile in 0.264" calls for a 1:7.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-25 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Vihtavuori N560, Norma MRP, Accurate MAGPRO rank at the top here: for 6.5 x 64 (Reb) with the .264 | 142gr | SUS-TAC HPT they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.